Chemical Formula: Cu2(PO4)(OH)
Locality: Lubietova (German Livethen), Czechoslovakia.
Name Origin: Named after its locality.
Libethenite is a rare copper phosphate hydroxide mineral. It forms striking, dark green orthorhombic crystals. It was discovered in 1823 in Ľubietová, Slovakia and is named after the German name of that locality (Libethen).
History
Discovery date : 1823
Town of Origin : L’UBIETOVA (LIBETBANYA) STREDOSLOVENSKY KRAJ
Country of Origin : SLOVAQUIE
Optical properties
Optical and misc. Properties : Translucent to subtranslucent
Refractive Index : from 1,70 to 1,78
Axial angle 2V : ~90°
Physical Properties
Cleavage: {100} Indistinct, {010} Indistinct
Color: Green, Dark green, Blackish green, Light olive green, Dark olive green.
Density: 3.6 – 4, Average = 3.8
Diaphaneity: Translucent to subtranslucent
Fracture: Brittle – Generally displayed by glasses and most non-metallic minerals.
Hardness: 4 – Fluorite
Luminescence: Non-fluorescent.
Luster: Vitreous – Greasy
Streak: light green
Photos:
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